Well played sir. I’ve used the dealership for all my oil changes and tire rotations since I bought the truck new. Last oil change at 38k I did it myself because I was headed out of town and didn’t have time for it to be at the dealer half a day. Had a Napa filter on it(not the worst thing in the world but I would expect an OEM filter on a new GMC). Put a Wix filter and 8qts of Mobil 1 full syn in for 60% of the price. Milwaukee impact, a jack and some stands and rotated the tires in about 10 minutes. Sent in an oil sample to blackstone with a note if they had any correlation on metal levels and lifter failures, as these trucks like to eat them. Haven’t gotten the results back but spent about the same money and will have a little more peace of mind.
